Knowledge Base

Luna’s Optical Backscatter Reflectometer (OBR) is ideally suited for troubleshooting both single mode and multi-mode optical networks. This engineering note details the advantages and disadvantages of three methods of mode conditioning: 1) direct launch method 2) full equilibrium mode launch 3) partial mode launch. Click here to download the full article

LUNA’s Optical Backscatter Reflectometer (OBR) is well suited for making localised Insertion Loss (IL) measurements in reflection using the differences in fibre Rayleigh scatter amplitude on either side of a loss event. This engineering note details how the use of a circulator can allow the user to measure the total IL of their Device Under Test (DUT) in transmission. Click...

This engineering note details two methods of coupling light from single mode fiber to multi-mode fiber to produce stable and repeatable Insertion Loss (IL) and Return Loss (RL) measurements with LUNA’s Optical Backscatter Reflectometer (OBR). This note also discusses the differences between IL and RL results for the two mode launch conditions and details the consequences for OBR spatial resolution...

LUNA’s Optical Backscatter Reflectometer (OBR) is ideally suited for measuring Insertion Loss (IL) and Return Loss (RL) in optical networks with extremely high spatial resolution. This engineering note details how to properly compute insertion loss by measuring the relative difference in scatter levels. Click here to download the full article

Overview Planar optical waveguide technologies are the key elements in the modern, high speed optical network. Recent broad deployment of optical and hybrid optoelectronic chips and planar light circuits (PLCs) has been driven by the cost, size and operational benefits that these architectures offer. From a measurement perspective, planar optical waveguide architectures offer several unique challenges. Even the highest quality...

Lambda Photometrics have been providing automation and Machine Vision solutions for over 40 years. Our experience serving the food and drink industry has been applied from the raw ingredients, morning goods, canned or bottled beverages, processed and frozen foods. Machine Vision Components Brochure

We are pleased to announce that Spectrum Illumination have appointed Polytec GmbH as the European Master Distributor for their complete portfolio of LED machine vision lighting products. Lambda Photometrics Ltd is a subsidiary of Polytec, meaning that Lambda is the official UK distributors for the Spectrum Illumination product range.     Please click the links below for specification sheets on...

Lock-in amplifiers are used to detect and measure very small AC signals, all the way down to a few nanovolts. Accurate measurements may be made even when the small signal is obscured by noise sources many thousands of times larger. Lock-in amplifiers use a technique known as phase-sensitive detection to single out the component of the signal at a specific...

Zygo Corporation announced the introduction of the ZeGage™ Plus optical profiler, a full-featured instrument for the 3D measurement of surface topography and roughness. The system provides the same ease of use, vibration robustness and small footprint as the ZeGage profiler but with a higher level of precision, faster measurement speed, and an increased range of measurable surfaces and features. "The ZeGage™ Plus is...

Pioneering the Optical Measurement segment with the unique UV-VIS-MWIR PHOTON RT spectrophotometer, EssentOptics continues to work closely with its customers worldwide and add new features improving product performance, measurement results and day-to-day work satisfaction. The upgraded PHOTON RT was showcased at the Laser World of Photonics 2015 exhibition in Munich, Germany (June 22-25, 2015). Throughout extensive field tests with our...